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Question

______________Fixes Atmospheric Nitrogen Useful To Plants.


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Solution

Nitrogen-fixing bacteria:

  • Nitrogen-fixing bacteria are primarily prokaryotic microorganisms that cannot be seen with the naked eye.
  • These nitrogen-fixing microorganisms could be either free-living or symbiotic in nature.
  • Nitrogen-fixing bacteria contain the enzyme nitrogenase, which is capable of nitrogen reduction.
  • Free-living Azotobacter, Beijernicika, and Clostridium are nitrogen-fixing aerobic bacteria.
  • Rhizobium, which is connected with leguminous plants, Frankia, which is linked with actinorhizal plants, and Azospirilum, which is associated with cereal grasses, are examples of symbiotic nitrogen-fixing bacteria.

Final answer: Nitrogen-fixing bacteria fixes atmospheric nitrogen useful to plants.


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